I found my boiler feed water pump is getting corrode. There is no way that the corrotion taking place of no feed water condition. Then I found that my steam trap in damaged.
You may thing, what is the link between the steam trap and boiler feed water pump. The boiler feed water is heated up to 65 to 90 degree. It will surely bear some steam within that. The steam in the sence, it is in gaseous phase, so it will leads to cavitation in my centrifugal feed water pump.
The way to remove the steam is to put a steam trap in between the feed water tank and feed water pump. I will explain you, how a steam trap works. If you observe a cooking vessel used for boiling water, the lid will contain water drop lets over the surface. This is because, the steam is in gaseous phase and it is moving upwards. In feed water line the steam will move with feed water, but above the water level. So we can easily take id out with the steam trap. A small animation of the working of steam trap is give in the link below,
http://www.tlv.com/global/TI/product-operation/free-float-steam-trap-ss.html
You may thing, what is the link between the steam trap and boiler feed water pump. The boiler feed water is heated up to 65 to 90 degree. It will surely bear some steam within that. The steam in the sence, it is in gaseous phase, so it will leads to cavitation in my centrifugal feed water pump.
The way to remove the steam is to put a steam trap in between the feed water tank and feed water pump. I will explain you, how a steam trap works. If you observe a cooking vessel used for boiling water, the lid will contain water drop lets over the surface. This is because, the steam is in gaseous phase and it is moving upwards. In feed water line the steam will move with feed water, but above the water level. So we can easily take id out with the steam trap. A small animation of the working of steam trap is give in the link below,
http://www.tlv.com/global/TI/product-operation/free-float-steam-trap-ss.html
Thermodynamic steam trap
